The constituent ratio, prevalence and average ectoparasite abundance were used to reflect the prevalence and density of ectoparasites. Non-parametric Mann-Whitney U-tests were used to test differences in the abundance and richness of ectoparasites between female and male hosts. Spearman correlation analysis was used to analyze the relationship between ectoparasites and the body parameters of hosts.

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A series of flexible U sections,changed in its sections,was separately simulated and analyzed by edger roll forming and flat roll forming.

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The Division specializes in trade, the main products by the operator has: digital products, such as keyboard, mouse, U disk, memory card, MP4; Electric: hair dryer,, electric fans, coffee machines, mixers; power: cell phone charger devices, transformers; a great deal of attention because of the company product quality and a deep wealth of experience, so that the quality of products continuously improve product quality in the domestic leader, with the United States, Britain, Taiwan and other developed countries and regions compared Products, Products already exported to all over the world.

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The birthplace of Duke Ellington, U Street was once a center of African-American culture.

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Secondly, in the trapezoidal channel which profile is that the base width is 20cm, the depth of channel is 20cm, the slope coefficient 1.0, and U-shaped channel which profile is that the depth of channel is 40cm, the radius of bottom circular arc, the external dip angle α of abutment wall is 8°, the article does a series of experiment researches on many of cylinder measuring flumes, such as circular, pier shaped, elliptic and diamond cylinder flumes, and discusses the variance of discharge coefficient, submergence factor, backwater height, head loss and critical submergence degree for each of cylinder measuring flume. On this basis, the article optimizes the structure shape of the cylinder measuring flume further.

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Study on emission spectrum of N2 molecule C3Πu state in DC glowing discharge［J］.

直流放電等離子體中氮分子C3Πu態(tài)的光譜研究［J］久久国产AV综合。

Calculating the equivalence class U/C and the discernibility matrices size are the two main factors which affect the efficiency of the attribute reduction algorithm based on discernibility matrices.

影響基于差別矩陣的屬性約簡算法效率的主要因素有計算U/C等價類和差別矩陣的大小。

CD-ROM, WORM, Erasable Optical Disks are becoming popular because of large capacity and flexibility. U-disk is a new high tech product, which has attracted the world's attention.

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Means that the variance in the error term, u, conditional on the explanatory variables, is the same for all combinations of outcomes of explanatory variables.

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